diff --git a/CHANGES.md b/CHANGES.md
index 6e40987..e1c6d47 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,6 @@
-### 2017-05-26.03-dev (XXXX-XX-XX)
+### 2017-05-26.03 (2017-12-14)
 * Switch to cohttp version 1.0.
+* wcs-lib and wcs-api are packagedin `Wcs_lib` and `Wcs_api` modules.
 
 ### 2017-05-26.02 (2017-11-10)
 * Add support for SPEL expressions.
diff --git a/wcs-api.opam b/wcs-api.opam
index e3c238e..816fb0e 100644
--- a/wcs-api.opam
+++ b/wcs-api.opam
@@ -1,6 +1,6 @@
 opam-version: "1.2"
 name: "wcs-api"
-version: "2017-05-26.03-dev"
+version: "2017-05-26.03"
 maintainer: [
   "Louis Mandel <lmandel@us.ibm.com>"
 ]
@@ -21,7 +21,7 @@ build: [
 build-test: [ ["jbuilder" "runtest" "-p" name] ]
 
 depends: [
-  "wcs-lib" {= "2017-05-26.03-dev"}
+  "wcs-lib" {= "2017-05-26.03"}
   "cohttp-lwt" {>= "1.0.0"}
 ]
 available: [
diff --git a/wcs-lib.opam b/wcs-lib.opam
index 5cf5c6b..d4ef055 100644
--- a/wcs-lib.opam
+++ b/wcs-lib.opam
@@ -1,6 +1,6 @@
 opam-version: "1.2"
 name: "wcs-lib"
-version: "2017-05-26.03-dev"
+version: "2017-05-26.03"
 maintainer: [
   "Louis Mandel <lmandel@us.ibm.com>"
 ]
diff --git a/wcs.opam b/wcs.opam
index b95d572..0b4c10b 100644
--- a/wcs.opam
+++ b/wcs.opam
@@ -1,6 +1,6 @@
 opam-version: "1.2"
 name: "wcs"
-version: "2017-05-26.03-dev"
+version: "2017-05-26.03"
 maintainer: [
   "Louis Mandel <lmandel@us.ibm.com>"
 ]
@@ -21,8 +21,8 @@ build: [
 build-test: [ ["jbuilder" "runtest"  "-p" name] ]
 
 depends: [
-  "wcs-lib" {= "2017-05-26.03-dev"}
-  "wcs-api" {= "2017-05-26.03-dev"}
+  "wcs-lib" {= "2017-05-26.03"}
+  "wcs-api" {= "2017-05-26.03"}
   "cohttp-lwt-unix"
 ]
 available: [